2 * TCC - Tiny C Compiler
4 * Copyright (c) 2001-2004 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 /********************************************************/
24 /* global variables */
26 /* use GNU C extensions */
27 ST_DATA
int gnu_ext
= 1;
29 /* use TinyCC extensions */
30 ST_DATA
int tcc_ext
= 1;
32 /* XXX: get rid of this ASAP */
33 ST_DATA
struct TCCState
*tcc_state
;
35 /********************************************************/
42 #ifdef TCC_TARGET_I386
48 #ifdef TCC_TARGET_ARM64
49 #include "arm64-gen.c"
54 #ifdef TCC_TARGET_X86_64
55 #include "x86_64-gen.c"
59 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
63 #ifdef TCC_TARGET_COFF
69 #endif /* ONE_SOURCE */
71 /********************************************************/
72 #ifndef CONFIG_TCC_ASM
73 ST_FUNC
void asm_instr(void)
75 tcc_error("inline asm() not supported");
77 ST_FUNC
void asm_global_instr(void)
79 tcc_error("inline asm() not supported");
83 /********************************************************/
85 static char *normalize_slashes(char *path
)
88 for (p
= path
; *p
; ++p
)
94 static HMODULE tcc_module
;
96 /* on win32, we suppose the lib and includes are at the location of 'tcc.exe' */
97 static void tcc_set_lib_path_w32(TCCState
*s
)
100 GetModuleFileNameA(tcc_module
, path
, sizeof path
);
101 p
= tcc_basename(normalize_slashes(strlwr(path
)));
102 if (p
- 5 > path
&& 0 == strncmp(p
- 5, "/bin/", 5))
107 tcc_set_lib_path(s
, path
);
111 static void tcc_add_systemdir(TCCState
*s
)
114 GetSystemDirectory(buf
, sizeof buf
);
115 tcc_add_library_path(s
, normalize_slashes(buf
));
119 #ifndef CONFIG_TCC_STATIC
120 static void dlclose(void *p
)
122 FreeLibrary((HMODULE
)p
);
127 BOOL WINAPI
DllMain (HINSTANCE hDll
, DWORD dwReason
, LPVOID lpReserved
)
129 if (DLL_PROCESS_ATTACH
== dwReason
)
136 /********************************************************/
137 /* copy a string and truncate it. */
138 ST_FUNC
char *pstrcpy(char *buf
, int buf_size
, const char *s
)
145 q_end
= buf
+ buf_size
- 1;
157 /* strcat and truncate. */
158 ST_FUNC
char *pstrcat(char *buf
, int buf_size
, const char *s
)
163 pstrcpy(buf
+ len
, buf_size
- len
, s
);
167 ST_FUNC
char *pstrncpy(char *out
, const char *in
, size_t num
)
169 memcpy(out
, in
, num
);
174 /* extract the basename of a file */
175 PUB_FUNC
char *tcc_basename(const char *name
)
177 char *p
= strchr(name
, 0);
178 while (p
> name
&& !IS_DIRSEP(p
[-1]))
183 /* extract extension part of a file
185 * (if no extension, return pointer to end-of-string)
187 PUB_FUNC
char *tcc_fileextension (const char *name
)
189 char *b
= tcc_basename(name
);
190 char *e
= strrchr(b
, '.');
191 return e
? e
: strchr(b
, 0);
194 /********************************************************/
195 /* memory management */
203 PUB_FUNC
void tcc_free(void *ptr
)
208 PUB_FUNC
void *tcc_malloc(unsigned long size
)
213 tcc_error("memory full (malloc)");
217 PUB_FUNC
void *tcc_mallocz(unsigned long size
)
220 ptr
= tcc_malloc(size
);
221 memset(ptr
, 0, size
);
225 PUB_FUNC
void *tcc_realloc(void *ptr
, unsigned long size
)
228 ptr1
= realloc(ptr
, size
);
230 tcc_error("memory full (realloc)");
234 PUB_FUNC
char *tcc_strdup(const char *str
)
237 ptr
= tcc_malloc(strlen(str
) + 1);
242 PUB_FUNC
void tcc_memstats(int bench
)
248 #define MEM_DEBUG_MAGIC1 0xFEEDDEB1
249 #define MEM_DEBUG_MAGIC2 0xFEEDDEB2
250 #define MEM_DEBUG_FILE_LEN 15
252 struct mem_debug_header
{
255 struct mem_debug_header
*prev
;
256 struct mem_debug_header
*next
;
258 char file_name
[MEM_DEBUG_FILE_LEN
+ 1];
262 typedef struct mem_debug_header mem_debug_header_t
;
264 static mem_debug_header_t
*mem_debug_chain
;
265 static size_t mem_cur_size
;
266 static size_t mem_max_size
;
268 PUB_FUNC
void *tcc_malloc_debug(unsigned long size
, const char *file
, int line
)
273 mem_debug_header_t
*header
;
275 ptr
= malloc(sizeof(mem_debug_header_t
) + size
);
277 tcc_error("memory full (malloc)");
279 mem_cur_size
+= size
;
280 if (mem_cur_size
> mem_max_size
)
281 mem_max_size
= mem_cur_size
;
283 header
= (mem_debug_header_t
*)ptr
;
285 header
->magic1
= MEM_DEBUG_MAGIC1
;
286 header
->magic2
= MEM_DEBUG_MAGIC2
;
288 header
->line_num
= line
;
290 ofs
= strlen(file
) - MEM_DEBUG_FILE_LEN
;
291 strncpy(header
->file_name
, file
+ (ofs
> 0 ? ofs
: 0), MEM_DEBUG_FILE_LEN
);
292 header
->file_name
[MEM_DEBUG_FILE_LEN
] = 0;
294 header
->next
= mem_debug_chain
;
298 header
->next
->prev
= header
;
300 mem_debug_chain
= header
;
302 ptr
= (char *)ptr
+ sizeof(mem_debug_header_t
);
306 PUB_FUNC
void tcc_free_debug(void *ptr
)
308 mem_debug_header_t
*header
;
313 ptr
= (char *)ptr
- sizeof(mem_debug_header_t
);
314 header
= (mem_debug_header_t
*)ptr
;
315 if (header
->magic1
!= MEM_DEBUG_MAGIC1
||
316 header
->magic2
!= MEM_DEBUG_MAGIC2
||
317 header
->size
== (size_t)-1 )
319 tcc_error("tcc_free check failed");
322 mem_cur_size
-= header
->size
;
323 header
->size
= (size_t)-1;
326 header
->next
->prev
= header
->prev
;
329 header
->prev
->next
= header
->next
;
331 if (header
== mem_debug_chain
)
332 mem_debug_chain
= header
->next
;
338 PUB_FUNC
void *tcc_mallocz_debug(unsigned long size
, const char *file
, int line
)
341 ptr
= tcc_malloc_debug(size
,file
,line
);
342 memset(ptr
, 0, size
);
346 PUB_FUNC
void *tcc_realloc_debug(void *ptr
, unsigned long size
, const char *file
, int line
)
348 mem_debug_header_t
*header
;
349 int mem_debug_chain_update
= 0;
352 ptr
= tcc_malloc_debug(size
, file
, line
);
356 ptr
= (char *)ptr
- sizeof(mem_debug_header_t
);
357 header
= (mem_debug_header_t
*)ptr
;
358 if (header
->magic1
!= MEM_DEBUG_MAGIC1
||
359 header
->magic2
!= MEM_DEBUG_MAGIC2
||
360 header
->size
== (size_t)-1 )
363 tcc_error("tcc_realloc check failed");
366 mem_debug_chain_update
= (header
== mem_debug_chain
);
368 mem_cur_size
-= header
->size
;
369 ptr
= realloc(ptr
, sizeof(mem_debug_header_t
) + size
);
371 tcc_error("memory full (realloc)");
373 header
= (mem_debug_header_t
*)ptr
;
374 if (header
->magic1
!= MEM_DEBUG_MAGIC1
||
375 header
->magic2
!= MEM_DEBUG_MAGIC2
)
380 mem_cur_size
+= size
;
381 if (mem_cur_size
> mem_max_size
)
382 mem_max_size
= mem_cur_size
;
386 header
->next
->prev
= header
;
389 header
->prev
->next
= header
;
391 if (mem_debug_chain_update
)
392 mem_debug_chain
= header
;
394 ptr
= (char *)ptr
+ sizeof(mem_debug_header_t
);
398 PUB_FUNC
char *tcc_strdup_debug(const char *str
, const char *file
, int line
)
401 ptr
= tcc_malloc_debug(strlen(str
) + 1, file
, line
);
406 PUB_FUNC
void tcc_memstats(int bench
)
409 mem_debug_header_t
*header
= mem_debug_chain
;
411 fprintf(stderr
, "MEM_DEBUG: mem_leak= %d bytes, mem_max_size= %d bytes\n",
412 mem_cur_size
, mem_max_size
);
415 fprintf(stderr
, " file %s, line %u: %u bytes\n",
416 header
->file_name
, header
->line_num
, header
->size
);
417 header
= header
->next
;
421 fprintf(stderr
, "mem_max_size= %d bytes\n", mem_max_size
);
424 #undef MEM_DEBUG_MAGIC1
425 #undef MEM_DEBUG_MAGIC2
426 #undef MEM_DEBUG_FILE_LEN
430 #define free(p) use_tcc_free(p)
431 #define malloc(s) use_tcc_malloc(s)
432 #define realloc(p, s) use_tcc_realloc(p, s)
434 /********************************************************/
437 ST_FUNC
void dynarray_add(void ***ptab
, int *nb_ptr
, void *data
)
444 /* every power of two we double array size */
445 if ((nb
& (nb
- 1)) == 0) {
450 pp
= tcc_realloc(pp
, nb_alloc
* sizeof(void *));
457 ST_FUNC
void dynarray_reset(void *pp
, int *n
)
460 for (p
= *(void***)pp
; *n
; ++p
, --*n
)
463 tcc_free(*(void**)pp
);
467 static void tcc_split_path(TCCState
*s
, void ***p_ary
, int *p_nb_ary
, const char *in
)
475 for (p
= in
; c
= *p
, c
!= '\0' && c
!= PATHSEP
; ++p
) {
476 if (c
== '{' && p
[1] && p
[2] == '}') {
479 cstr_cat(&str
, s
->tcc_lib_path
, -1);
484 cstr_ccat(&str
, '\0');
485 dynarray_add(p_ary
, p_nb_ary
, tcc_strdup(str
.data
));
491 /********************************************************/
493 ST_FUNC Section
*new_section(TCCState
*s1
, const char *name
, int sh_type
, int sh_flags
)
497 sec
= tcc_mallocz(sizeof(Section
) + strlen(name
));
498 strcpy(sec
->name
, name
);
499 sec
->sh_type
= sh_type
;
500 sec
->sh_flags
= sh_flags
;
508 sec
->sh_addralign
= 4;
511 sec
->sh_addralign
= 1;
514 sec
->sh_addralign
= PTR_SIZE
; /* gcc/pcc default aligment */
518 if (sh_flags
& SHF_PRIVATE
) {
519 dynarray_add((void ***)&s1
->priv_sections
, &s1
->nb_priv_sections
, sec
);
521 sec
->sh_num
= s1
->nb_sections
;
522 dynarray_add((void ***)&s1
->sections
, &s1
->nb_sections
, sec
);
528 static void free_section(Section
*s
)
533 /* realloc section and set its content to zero */
534 ST_FUNC
void section_realloc(Section
*sec
, unsigned long new_size
)
539 size
= sec
->data_allocated
;
542 while (size
< new_size
)
544 data
= tcc_realloc(sec
->data
, size
);
545 memset(data
+ sec
->data_allocated
, 0, size
- sec
->data_allocated
);
547 sec
->data_allocated
= size
;
550 /* reserve at least 'size' bytes in section 'sec' from
552 ST_FUNC
void *section_ptr_add(Section
*sec
, addr_t size
)
554 size_t offset
, offset1
;
556 offset
= sec
->data_offset
;
557 offset1
= offset
+ size
;
558 if (offset1
> sec
->data_allocated
)
559 section_realloc(sec
, offset1
);
560 sec
->data_offset
= offset1
;
561 return sec
->data
+ offset
;
564 /* reserve at least 'size' bytes from section start */
565 ST_FUNC
void section_reserve(Section
*sec
, unsigned long size
)
567 if (size
> sec
->data_allocated
)
568 section_realloc(sec
, size
);
569 if (size
> sec
->data_offset
)
570 sec
->data_offset
= size
;
573 /* return a reference to a section, and create it if it does not
575 ST_FUNC Section
*find_section(TCCState
*s1
, const char *name
)
579 for(i
= 1; i
< s1
->nb_sections
; i
++) {
580 sec
= s1
->sections
[i
];
581 if (!strcmp(name
, sec
->name
))
584 /* sections are created as PROGBITS */
585 return new_section(s1
, name
, SHT_PROGBITS
, SHF_ALLOC
);
588 /* update sym->c so that it points to an external symbol in section
589 'section' with value 'value' */
590 ST_FUNC
void put_extern_sym2(Sym
*sym
, Section
*section
,
591 addr_t value
, unsigned long size
,
592 int can_add_underscore
)
594 int sym_type
, sym_bind
, sh_num
, info
, other
;
599 #ifdef CONFIG_TCC_BCHECK
605 else if (section
== SECTION_ABS
)
608 sh_num
= section
->sh_num
;
610 if ((sym
->type
.t
& VT_BTYPE
) == VT_FUNC
) {
612 } else if ((sym
->type
.t
& VT_BTYPE
) == VT_VOID
) {
613 sym_type
= STT_NOTYPE
;
615 sym_type
= STT_OBJECT
;
618 if (sym
->type
.t
& VT_STATIC
)
619 sym_bind
= STB_LOCAL
;
621 if (sym
->type
.t
& VT_WEAK
)
624 sym_bind
= STB_GLOBAL
;
628 name
= get_tok_str(sym
->v
, NULL
);
629 #ifdef CONFIG_TCC_BCHECK
630 if (tcc_state
->do_bounds_check
) {
631 /* XXX: avoid doing that for statics ? */
632 /* if bound checking is activated, we change some function
633 names by adding the "__bound" prefix */
636 /* XXX: we rely only on malloc hooks */
649 strcpy(buf
, "__bound_");
659 if (sym
->type
.t
& VT_EXPORT
)
660 other
|= ST_PE_EXPORT
;
661 if (sym_type
== STT_FUNC
&& sym
->type
.ref
) {
662 Sym
*ref
= sym
->type
.ref
;
663 if (ref
->a
.func_export
)
664 other
|= ST_PE_EXPORT
;
665 if (ref
->a
.func_call
== FUNC_STDCALL
&& can_add_underscore
) {
666 sprintf(buf1
, "_%s@%d", name
, ref
->a
.func_args
* PTR_SIZE
);
668 other
|= ST_PE_STDCALL
;
669 can_add_underscore
= 0;
672 if (find_elf_sym(tcc_state
->dynsymtab_section
, name
))
673 other
|= ST_PE_IMPORT
;
674 if (sym
->type
.t
& VT_IMPORT
)
675 other
|= ST_PE_IMPORT
;
678 if (! (sym
->type
.t
& VT_STATIC
))
679 other
= (sym
->type
.t
& VT_VIS_MASK
) >> VT_VIS_SHIFT
;
681 if (tcc_state
->leading_underscore
&& can_add_underscore
) {
683 pstrcpy(buf1
+ 1, sizeof(buf1
) - 1, name
);
686 if (sym
->asm_label
) {
687 name
= get_tok_str(sym
->asm_label
, NULL
);
689 info
= ELFW(ST_INFO
)(sym_bind
, sym_type
);
690 sym
->c
= add_elf_sym(symtab_section
, value
, size
, info
, other
, sh_num
, name
);
692 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
693 esym
->st_value
= value
;
694 esym
->st_size
= size
;
695 esym
->st_shndx
= sh_num
;
699 ST_FUNC
void put_extern_sym(Sym
*sym
, Section
*section
,
700 addr_t value
, unsigned long size
)
702 put_extern_sym2(sym
, section
, value
, size
, 1);
705 /* add a new relocation entry to symbol 'sym' in section 's' */
706 ST_FUNC
void greloca(Section
*s
, Sym
*sym
, unsigned long offset
, int type
,
712 put_extern_sym(sym
, NULL
, 0, 0);
715 /* now we can add ELF relocation info */
716 put_elf_reloca(symtab_section
, s
, offset
, type
, c
, addend
);
719 ST_FUNC
void greloc(Section
*s
, Sym
*sym
, unsigned long offset
, int type
)
721 greloca(s
, sym
, offset
, type
, 0);
724 /********************************************************/
726 static void strcat_vprintf(char *buf
, int buf_size
, const char *fmt
, va_list ap
)
730 vsnprintf(buf
+ len
, buf_size
- len
, fmt
, ap
);
733 static void strcat_printf(char *buf
, int buf_size
, const char *fmt
, ...)
737 strcat_vprintf(buf
, buf_size
, fmt
, ap
);
741 static void error1(TCCState
*s1
, int is_warning
, const char *fmt
, va_list ap
)
744 BufferedFile
**pf
, *f
;
747 /* use upper file if inline ":asm:" or token ":paste:" */
748 for (f
= file
; f
&& f
->filename
[0] == ':'; f
= f
->prev
)
751 for(pf
= s1
->include_stack
; pf
< s1
->include_stack_ptr
; pf
++)
752 strcat_printf(buf
, sizeof(buf
), "In file included from %s:%d:\n",
753 (*pf
)->filename
, (*pf
)->line_num
);
754 if (f
->line_num
> 0) {
755 strcat_printf(buf
, sizeof(buf
), "%s:%d: ",
756 f
->filename
, f
->line_num
- !!(tok_flags
& TOK_FLAG_BOL
));
758 strcat_printf(buf
, sizeof(buf
), "%s: ",
762 strcat_printf(buf
, sizeof(buf
), "tcc: ");
765 strcat_printf(buf
, sizeof(buf
), "warning: ");
767 strcat_printf(buf
, sizeof(buf
), "error: ");
768 strcat_vprintf(buf
, sizeof(buf
), fmt
, ap
);
770 if (!s1
->error_func
) {
771 /* default case: stderr */
772 if (s1
->ppfp
) /* print a newline during tcc -E */
773 fprintf(s1
->ppfp
, "\n"), fflush(s1
->ppfp
);
774 fprintf(stderr
, "%s\n", buf
);
775 fflush(stderr
); /* print error/warning now (win32) */
777 s1
->error_func(s1
->error_opaque
, buf
);
779 if (!is_warning
|| s1
->warn_error
)
783 LIBTCCAPI
void tcc_set_error_func(TCCState
*s
, void *error_opaque
,
784 void (*error_func
)(void *opaque
, const char *msg
))
786 s
->error_opaque
= error_opaque
;
787 s
->error_func
= error_func
;
790 /* error without aborting current compilation */
791 PUB_FUNC
void tcc_error_noabort(const char *fmt
, ...)
793 TCCState
*s1
= tcc_state
;
797 error1(s1
, 0, fmt
, ap
);
801 PUB_FUNC
void tcc_error(const char *fmt
, ...)
803 TCCState
*s1
= tcc_state
;
807 error1(s1
, 0, fmt
, ap
);
809 /* better than nothing: in some cases, we accept to handle errors */
810 if (s1
->error_set_jmp_enabled
) {
811 longjmp(s1
->error_jmp_buf
, 1);
813 /* XXX: eliminate this someday */
818 PUB_FUNC
void tcc_warning(const char *fmt
, ...)
820 TCCState
*s1
= tcc_state
;
827 error1(s1
, 1, fmt
, ap
);
831 /********************************************************/
834 ST_FUNC
void tcc_open_bf(TCCState
*s1
, const char *filename
, int initlen
)
837 int buflen
= initlen
? initlen
: IO_BUF_SIZE
;
839 bf
= tcc_mallocz(sizeof(BufferedFile
) + buflen
);
840 bf
->buf_ptr
= bf
->buffer
;
841 bf
->buf_end
= bf
->buffer
+ initlen
;
842 bf
->buf_end
[0] = CH_EOB
; /* put eob symbol */
843 pstrcpy(bf
->filename
, sizeof(bf
->filename
), filename
);
845 normalize_slashes(bf
->filename
);
848 bf
->ifdef_stack_ptr
= s1
->ifdef_stack_ptr
;
854 ST_FUNC
void tcc_close(void)
856 BufferedFile
*bf
= file
;
859 total_lines
+= bf
->line_num
;
865 ST_FUNC
int tcc_open(TCCState
*s1
, const char *filename
)
868 if (strcmp(filename
, "-") == 0)
869 fd
= 0, filename
= "<stdin>";
871 fd
= open(filename
, O_RDONLY
| O_BINARY
);
872 if ((s1
->verbose
== 2 && fd
>= 0) || s1
->verbose
== 3)
873 printf("%s %*s%s\n", fd
< 0 ? "nf":"->",
874 (int)(s1
->include_stack_ptr
- s1
->include_stack
), "", filename
);
878 tcc_open_bf(s1
, filename
, 0);
883 /* compile the C file opened in 'file'. Return non zero if errors. */
884 static int tcc_compile(TCCState
*s1
)
888 volatile int section_sym
;
891 printf("%s: **** new file\n", file
->filename
);
895 cur_text_section
= NULL
;
897 anon_sym
= SYM_FIRST_ANOM
;
899 /* file info: full path + filename */
900 section_sym
= 0; /* avoid warning */
902 section_sym
= put_elf_sym(symtab_section
, 0, 0,
903 ELFW(ST_INFO
)(STB_LOCAL
, STT_SECTION
), 0,
904 text_section
->sh_num
, NULL
);
905 getcwd(buf
, sizeof(buf
));
907 normalize_slashes(buf
);
909 pstrcat(buf
, sizeof(buf
), "/");
910 put_stabs_r(buf
, N_SO
, 0, 0,
911 text_section
->data_offset
, text_section
, section_sym
);
912 put_stabs_r(file
->filename
, N_SO
, 0, 0,
913 text_section
->data_offset
, text_section
, section_sym
);
915 /* an elf symbol of type STT_FILE must be put so that STB_LOCAL
916 symbols can be safely used */
917 put_elf_sym(symtab_section
, 0, 0,
918 ELFW(ST_INFO
)(STB_LOCAL
, STT_FILE
), 0,
919 SHN_ABS
, file
->filename
);
921 /* define some often used types */
924 char_pointer_type
.t
= VT_BYTE
;
925 mk_pointer(&char_pointer_type
);
928 size_type
.t
= VT_INT
;
930 size_type
.t
= VT_LLONG
;
933 func_old_type
.t
= VT_FUNC
;
934 func_old_type
.ref
= sym_push(SYM_FIELD
, &int_type
, FUNC_CDECL
, FUNC_OLD
);
935 #ifdef TCC_TARGET_ARM
940 /* define 'void *alloca(unsigned int)' builtin function */
945 sym
= sym_push(p
, mk_pointer(VT_VOID
), FUNC_CDECL
, FUNC_NEW
);
946 s1
= sym_push(SYM_FIELD
, VT_UNSIGNED
| VT_INT
, 0, 0);
949 sym_push(TOK_alloca
, VT_FUNC
| (p
<< VT_STRUCT_SHIFT
), VT_CONST
, 0);
953 define_start
= define_stack
;
956 if (setjmp(s1
->error_jmp_buf
) == 0) {
958 s1
->error_set_jmp_enabled
= 1;
960 ch
= file
->buf_ptr
[0];
961 tok_flags
= TOK_FLAG_BOL
| TOK_FLAG_BOF
;
962 parse_flags
= PARSE_FLAG_PREPROCESS
| PARSE_FLAG_TOK_NUM
| PARSE_FLAG_TOK_STR
;
966 expect("declaration");
967 gen_inline_functions();
969 /* end of translation unit info */
971 put_stabs_r(NULL
, N_SO
, 0, 0,
972 text_section
->data_offset
, text_section
, section_sym
);
976 s1
->error_set_jmp_enabled
= 0;
977 /* reset define stack, but keep -D and built-ins */
978 free_defines(define_start
);
979 sym_pop(&global_stack
, NULL
);
980 sym_pop(&local_stack
, NULL
);
981 return s1
->nb_errors
!= 0 ? -1 : 0;
984 LIBTCCAPI
int tcc_compile_string(TCCState
*s
, const char *str
)
989 tcc_open_bf(s
, "<string>", len
);
990 memcpy(file
->buffer
, str
, len
);
991 ret
= tcc_compile(s
);
996 /* define a preprocessor symbol. A value can also be provided with the '=' operator */
997 LIBTCCAPI
void tcc_define_symbol(TCCState
*s1
, const char *sym
, const char *value
)
1004 len2
= strlen(value
);
1006 /* init file structure */
1007 tcc_open_bf(s1
, "<define>", len1
+ len2
+ 1);
1008 memcpy(file
->buffer
, sym
, len1
);
1009 file
->buffer
[len1
] = ' ';
1010 memcpy(file
->buffer
+ len1
+ 1, value
, len2
);
1012 /* parse with define parser */
1013 ch
= file
->buf_ptr
[0];
1020 /* undefine a preprocessor symbol */
1021 LIBTCCAPI
void tcc_undefine_symbol(TCCState
*s1
, const char *sym
)
1025 ts
= tok_alloc(sym
, strlen(sym
));
1026 s
= define_find(ts
->tok
);
1027 /* undefine symbol by putting an invalid name */
1032 /* cleanup all static data used during compilation */
1033 static void tcc_cleanup(void)
1035 if (NULL
== tcc_state
)
1039 preprocess_delete();
1041 /* free sym_pools */
1042 dynarray_reset(&sym_pools
, &nb_sym_pools
);
1043 /* reset symbol stack */
1044 sym_free_first
= NULL
;
1047 LIBTCCAPI TCCState
*tcc_new(void)
1055 s
= tcc_mallocz(sizeof(TCCState
));
1060 tcc_set_lib_path_w32(s
);
1062 tcc_set_lib_path(s
, CONFIG_TCCDIR
);
1066 s
->include_stack_ptr
= s
->include_stack
;
1068 /* we add dummy defines for some special macros to speed up tests
1069 and to have working defined() */
1070 define_push(TOK___LINE__
, MACRO_OBJ
, NULL
, NULL
);
1071 define_push(TOK___FILE__
, MACRO_OBJ
, NULL
, NULL
);
1072 define_push(TOK___DATE__
, MACRO_OBJ
, NULL
, NULL
);
1073 define_push(TOK___TIME__
, MACRO_OBJ
, NULL
, NULL
);
1075 /* define __TINYC__ 92X */
1076 sscanf(TCC_VERSION
, "%d.%d.%d", &a
, &b
, &c
);
1077 sprintf(buffer
, "%d", a
*10000 + b
*100 + c
);
1078 tcc_define_symbol(s
, "__TINYC__", buffer
);
1080 /* standard defines */
1081 tcc_define_symbol(s
, "__STDC__", NULL
);
1082 tcc_define_symbol(s
, "__STDC_VERSION__", "199901L");
1083 tcc_define_symbol(s
, "__STDC_HOSTED__", NULL
);
1085 /* target defines */
1086 #if defined(TCC_TARGET_I386)
1087 tcc_define_symbol(s
, "__i386__", NULL
);
1088 tcc_define_symbol(s
, "__i386", NULL
);
1089 tcc_define_symbol(s
, "i386", NULL
);
1090 #elif defined(TCC_TARGET_X86_64)
1091 tcc_define_symbol(s
, "__x86_64__", NULL
);
1092 #elif defined(TCC_TARGET_ARM)
1093 tcc_define_symbol(s
, "__ARM_ARCH_4__", NULL
);
1094 tcc_define_symbol(s
, "__arm_elf__", NULL
);
1095 tcc_define_symbol(s
, "__arm_elf", NULL
);
1096 tcc_define_symbol(s
, "arm_elf", NULL
);
1097 tcc_define_symbol(s
, "__arm__", NULL
);
1098 tcc_define_symbol(s
, "__arm", NULL
);
1099 tcc_define_symbol(s
, "arm", NULL
);
1100 tcc_define_symbol(s
, "__APCS_32__", NULL
);
1101 tcc_define_symbol(s
, "__ARMEL__", NULL
);
1102 #if defined(TCC_ARM_EABI)
1103 tcc_define_symbol(s
, "__ARM_EABI__", NULL
);
1105 #if defined(TCC_ARM_HARDFLOAT)
1106 s
->float_abi
= ARM_HARD_FLOAT
;
1107 tcc_define_symbol(s
, "__ARM_PCS_VFP", NULL
);
1109 s
->float_abi
= ARM_SOFTFP_FLOAT
;
1111 #elif defined(TCC_TARGET_ARM64)
1112 tcc_define_symbol(s
, "__aarch64__", NULL
);
1115 #ifdef TCC_TARGET_PE
1116 tcc_define_symbol(s
, "_WIN32", NULL
);
1117 # ifdef TCC_TARGET_X86_64
1118 tcc_define_symbol(s
, "_WIN64", NULL
);
1119 /* Those are defined by Visual Studio */
1120 tcc_define_symbol(s
, "_M_X64", "100");
1121 tcc_define_symbol(s
, "_M_AMD64", "100");
1123 /* Defined by Visual Studio. 300 == 80386. */
1124 tcc_define_symbol(s
, "_M_IX86", "300");
1127 tcc_define_symbol(s
, "__unix__", NULL
);
1128 tcc_define_symbol(s
, "__unix", NULL
);
1129 tcc_define_symbol(s
, "unix", NULL
);
1130 # if defined(__linux__)
1131 tcc_define_symbol(s
, "__linux__", NULL
);
1132 tcc_define_symbol(s
, "__linux", NULL
);
1134 # if defined(__FreeBSD__)
1135 tcc_define_symbol(s
, "__FreeBSD__", "__FreeBSD__");
1137 # if defined(__FreeBSD_kernel__)
1138 tcc_define_symbol(s
, "__FreeBSD_kernel__", NULL
);
1141 # if defined(__NetBSD__)
1142 tcc_define_symbol(s
, "__NetBSD__", "__NetBSD__");
1145 /* TinyCC & gcc defines */
1146 #if defined(TCC_TARGET_PE) && defined(TCC_TARGET_X86_64)
1147 /* 64bit Windows. */
1148 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long long");
1149 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long long");
1150 tcc_define_symbol(s
, "__LLP64__", NULL
);
1151 #elif defined(TCC_TARGET_X86_64) || defined(TCC_TARGET_ARM64)
1152 /* Other 64bit systems. */
1153 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
1154 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
1155 tcc_define_symbol(s
, "__LP64__", NULL
);
1157 /* Other 32bit systems. */
1158 tcc_define_symbol(s
, "__SIZE_TYPE__", "unsigned long");
1159 tcc_define_symbol(s
, "__PTRDIFF_TYPE__", "long");
1160 tcc_define_symbol(s
, "__ILP32__", NULL
);
1163 #ifdef TCC_TARGET_PE
1164 tcc_define_symbol(s
, "__WCHAR_TYPE__", "unsigned short");
1165 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned short");
1167 tcc_define_symbol(s
, "__WCHAR_TYPE__", "int");
1168 /* wint_t is unsigned int by default, but (signed) int on BSDs
1169 and unsigned short on windows. Other OSes might have still
1170 other conventions, sigh. */
1171 #if defined(__FreeBSD__) || defined (__FreeBSD_kernel__) || defined(__NetBSD__)
1172 tcc_define_symbol(s
, "__WINT_TYPE__", "int");
1174 tcc_define_symbol(s
, "__WINT_TYPE__", "unsigned int");
1178 #ifndef TCC_TARGET_PE
1180 tcc_define_symbol(s
, "__REDIRECT(name, proto, alias)", "name proto __asm__ (#alias)");
1181 tcc_define_symbol(s
, "__REDIRECT_NTH(name, proto, alias)", "name proto __asm__ (#alias) __THROW");
1182 /* paths for crt objects */
1183 tcc_split_path(s
, (void ***)&s
->crt_paths
, &s
->nb_crt_paths
, CONFIG_TCC_CRTPREFIX
);
1186 /* no section zero */
1187 dynarray_add((void ***)&s
->sections
, &s
->nb_sections
, NULL
);
1189 /* create standard sections */
1190 text_section
= new_section(s
, ".text", SHT_PROGBITS
, SHF_ALLOC
| SHF_EXECINSTR
);
1191 data_section
= new_section(s
, ".data", SHT_PROGBITS
, SHF_ALLOC
| SHF_WRITE
);
1192 bss_section
= new_section(s
, ".bss", SHT_NOBITS
, SHF_ALLOC
| SHF_WRITE
);
1194 /* symbols are always generated for linking stage */
1195 symtab_section
= new_symtab(s
, ".symtab", SHT_SYMTAB
, 0,
1197 ".hashtab", SHF_PRIVATE
);
1198 strtab_section
= symtab_section
->link
;
1199 s
->symtab
= symtab_section
;
1201 /* private symbol table for dynamic symbols */
1202 s
->dynsymtab_section
= new_symtab(s
, ".dynsymtab", SHT_SYMTAB
, SHF_PRIVATE
,
1204 ".dynhashtab", SHF_PRIVATE
);
1205 s
->alacarte_link
= 1;
1207 s
->warn_implicit_function_declaration
= 1;
1209 #ifdef CHAR_IS_UNSIGNED
1210 s
->char_is_unsigned
= 1;
1212 /* enable this if you want symbols with leading underscore on windows: */
1213 #if 0 /* def TCC_TARGET_PE */
1214 s
->leading_underscore
= 1;
1216 #ifdef TCC_TARGET_I386
1219 #ifdef TCC_IS_NATIVE
1220 s
->runtime_main
= "main";
1225 LIBTCCAPI
void tcc_delete(TCCState
*s1
)
1228 int bench
= s1
->do_bench
;
1232 /* free all sections */
1233 for(i
= 1; i
< s1
->nb_sections
; i
++)
1234 free_section(s1
->sections
[i
]);
1235 dynarray_reset(&s1
->sections
, &s1
->nb_sections
);
1237 for(i
= 0; i
< s1
->nb_priv_sections
; i
++)
1238 free_section(s1
->priv_sections
[i
]);
1239 dynarray_reset(&s1
->priv_sections
, &s1
->nb_priv_sections
);
1241 /* free any loaded DLLs */
1242 #ifdef TCC_IS_NATIVE
1243 for ( i
= 0; i
< s1
->nb_loaded_dlls
; i
++) {
1244 DLLReference
*ref
= s1
->loaded_dlls
[i
];
1246 dlclose(ref
->handle
);
1250 /* free loaded dlls array */
1251 dynarray_reset(&s1
->loaded_dlls
, &s1
->nb_loaded_dlls
);
1253 /* free library paths */
1254 dynarray_reset(&s1
->library_paths
, &s1
->nb_library_paths
);
1255 dynarray_reset(&s1
->crt_paths
, &s1
->nb_crt_paths
);
1257 /* free include paths */
1258 dynarray_reset(&s1
->cached_includes
, &s1
->nb_cached_includes
);
1259 dynarray_reset(&s1
->include_paths
, &s1
->nb_include_paths
);
1260 dynarray_reset(&s1
->sysinclude_paths
, &s1
->nb_sysinclude_paths
);
1262 tcc_free(s1
->tcc_lib_path
);
1263 tcc_free(s1
->soname
);
1264 tcc_free(s1
->rpath
);
1265 tcc_free(s1
->init_symbol
);
1266 tcc_free(s1
->fini_symbol
);
1267 tcc_free(s1
->outfile
);
1268 tcc_free(s1
->deps_outfile
);
1269 dynarray_reset(&s1
->files
, &s1
->nb_files
);
1270 dynarray_reset(&s1
->target_deps
, &s1
->nb_target_deps
);
1271 dynarray_reset(&s1
->pragma_libs
, &s1
->nb_pragma_libs
);
1273 #ifdef TCC_IS_NATIVE
1274 # ifdef HAVE_SELINUX
1275 munmap (s1
->write_mem
, s1
->mem_size
);
1276 munmap (s1
->runtime_mem
, s1
->mem_size
);
1278 tcc_free(s1
->runtime_mem
);
1282 tcc_free(s1
->sym_attrs
);
1284 tcc_memstats(bench
);
1287 LIBTCCAPI
int tcc_add_include_path(TCCState
*s
, const char *pathname
)
1289 tcc_split_path(s
, (void ***)&s
->include_paths
, &s
->nb_include_paths
, pathname
);
1293 LIBTCCAPI
int tcc_add_sysinclude_path(TCCState
*s
, const char *pathname
)
1295 tcc_split_path(s
, (void ***)&s
->sysinclude_paths
, &s
->nb_sysinclude_paths
, pathname
);
1299 ST_FUNC
int tcc_add_file_internal(TCCState
*s1
, const char *filename
, int flags
)
1303 int filetype
= flags
& 0x0F;
1305 if (filetype
== 0) {
1306 /* use a file extension to detect a filetype */
1307 const char *ext
= tcc_fileextension(filename
);
1310 if (!strcmp(ext
, "S"))
1311 filetype
= AFF_TYPE_ASMPP
;
1312 else if (!strcmp(ext
, "s"))
1313 filetype
= AFF_TYPE_ASM
;
1314 else if (!PATHCMP(ext
, "c") || !PATHCMP(ext
, "i"))
1315 filetype
= AFF_TYPE_C
;
1317 filetype
= AFF_TYPE_BIN
;
1319 filetype
= AFF_TYPE_C
;
1324 #ifdef CONFIG_TCC_ASM
1325 /* if .S file, define __ASSEMBLER__ like gcc does */
1326 if (filetype
== AFF_TYPE_ASM
1327 || filetype
== AFF_TYPE_ASMPP
) {
1328 tcc_define_symbol(s1
, "__ASSEMBLER__", NULL
);
1329 parse_flags
= PARSE_FLAG_ASM_FILE
;
1334 ret
= tcc_open(s1
, filename
);
1336 if (flags
& AFF_PRINT_ERROR
)
1337 tcc_error_noabort("file '%s' not found", filename
);
1341 /* update target deps */
1342 dynarray_add((void ***)&s1
->target_deps
, &s1
->nb_target_deps
,
1343 tcc_strdup(filename
));
1345 if (flags
& AFF_PREPROCESS
) {
1346 ret
= tcc_preprocess(s1
);
1350 if (filetype
== AFF_TYPE_C
) {
1351 /* C file assumed */
1352 ret
= tcc_compile(s1
);
1356 #ifdef CONFIG_TCC_ASM
1357 if (filetype
== AFF_TYPE_ASMPP
) {
1358 /* non preprocessed assembler */
1359 ret
= tcc_assemble(s1
, 1);
1363 if (filetype
== AFF_TYPE_ASM
) {
1364 /* preprocessed assembler */
1365 ret
= tcc_assemble(s1
, 0);
1371 /* assume executable format: auto guess file type */
1372 size
= read(fd
, &ehdr
, sizeof(ehdr
));
1373 lseek(fd
, 0, SEEK_SET
);
1375 tcc_error_noabort("could not read header");
1379 if (size
== sizeof(ehdr
) &&
1380 ehdr
.e_ident
[0] == ELFMAG0
&&
1381 ehdr
.e_ident
[1] == ELFMAG1
&&
1382 ehdr
.e_ident
[2] == ELFMAG2
&&
1383 ehdr
.e_ident
[3] == ELFMAG3
) {
1385 /* do not display line number if error */
1387 if (ehdr
.e_type
== ET_REL
) {
1388 ret
= tcc_load_object_file(s1
, fd
, 0);
1392 #ifndef TCC_TARGET_PE
1393 if (ehdr
.e_type
== ET_DYN
) {
1394 if (s1
->output_type
== TCC_OUTPUT_MEMORY
) {
1395 #ifdef TCC_IS_NATIVE
1397 h
= dlopen(filename
, RTLD_GLOBAL
| RTLD_LAZY
);
1402 ret
= tcc_load_dll(s1
, fd
, filename
,
1403 (flags
& AFF_REFERENCED_DLL
) != 0);
1408 tcc_error_noabort("unrecognized ELF file");
1412 if (memcmp((char *)&ehdr
, ARMAG
, 8) == 0) {
1413 file
->line_num
= 0; /* do not display line number if error */
1414 ret
= tcc_load_archive(s1
, fd
);
1418 #ifdef TCC_TARGET_COFF
1419 if (*(uint16_t *)(&ehdr
) == COFF_C67_MAGIC
) {
1420 ret
= tcc_load_coff(s1
, fd
);
1425 #ifdef TCC_TARGET_PE
1426 ret
= pe_load_file(s1
, filename
, fd
);
1428 /* as GNU ld, consider it is an ld script if not recognized */
1429 ret
= tcc_load_ldscript(s1
);
1432 tcc_error_noabort("unrecognized file type");
1439 LIBTCCAPI
int tcc_add_file(TCCState
*s
, const char *filename
)
1441 if (s
->output_type
== TCC_OUTPUT_PREPROCESS
)
1442 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| AFF_PREPROCESS
| s
->filetype
);
1444 return tcc_add_file_internal(s
, filename
, AFF_PRINT_ERROR
| s
->filetype
);
1447 LIBTCCAPI
int tcc_add_library_path(TCCState
*s
, const char *pathname
)
1449 tcc_split_path(s
, (void ***)&s
->library_paths
, &s
->nb_library_paths
, pathname
);
1453 static int tcc_add_library_internal(TCCState
*s
, const char *fmt
,
1454 const char *filename
, int flags
, char **paths
, int nb_paths
)
1459 for(i
= 0; i
< nb_paths
; i
++) {
1460 snprintf(buf
, sizeof(buf
), fmt
, paths
[i
], filename
);
1461 if (tcc_add_file_internal(s
, buf
, flags
| AFF_TYPE_BIN
) == 0)
1467 #ifndef TCC_TARGET_PE
1468 /* find and load a dll. Return non zero if not found */
1469 /* XXX: add '-rpath' option support ? */
1470 ST_FUNC
int tcc_add_dll(TCCState
*s
, const char *filename
, int flags
)
1472 return tcc_add_library_internal(s
, "%s/%s", filename
, flags
,
1473 s
->library_paths
, s
->nb_library_paths
);
1477 ST_FUNC
int tcc_add_crt(TCCState
*s
, const char *filename
)
1479 if (-1 == tcc_add_library_internal(s
, "%s/%s",
1480 filename
, 0, s
->crt_paths
, s
->nb_crt_paths
))
1481 tcc_error_noabort("file '%s' not found", filename
);
1485 /* the library name is the same as the argument of the '-l' option */
1486 LIBTCCAPI
int tcc_add_library(TCCState
*s
, const char *libraryname
)
1488 #ifdef TCC_TARGET_PE
1489 const char *libs
[] = { "%s/%s.def", "%s/lib%s.def", "%s/%s.dll", "%s/lib%s.dll", "%s/lib%s.a", NULL
};
1490 const char **pp
= s
->static_link
? libs
+ 4 : libs
;
1492 const char *libs
[] = { "%s/lib%s.so", "%s/lib%s.a", NULL
};
1493 const char **pp
= s
->static_link
? libs
+ 1 : libs
;
1496 if (0 == tcc_add_library_internal(s
, *pp
,
1497 libraryname
, 0, s
->library_paths
, s
->nb_library_paths
))
1504 PUB_FUNC
int tcc_add_library_err(TCCState
*s
, const char *libname
)
1506 int ret
= tcc_add_library(s
, libname
);
1508 tcc_error_noabort("cannot find library 'lib%s'", libname
);
1512 /* habdle #pragma comment(lib,) */
1513 ST_FUNC
void tcc_add_pragma_libs(TCCState
*s1
)
1516 for (i
= 0; i
< s1
->nb_pragma_libs
; i
++)
1517 tcc_add_library_err(s1
, s1
->pragma_libs
[i
]);
1520 LIBTCCAPI
int tcc_add_symbol(TCCState
*s
, const char *name
, const void *val
)
1522 #ifdef TCC_TARGET_PE
1523 /* On x86_64 'val' might not be reachable with a 32bit offset.
1524 So it is handled here as if it were in a DLL. */
1525 pe_putimport(s
, 0, name
, (uintptr_t)val
);
1527 add_elf_sym(symtab_section
, (uintptr_t)val
, 0,
1528 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1535 /* Windows stat* ( https://msdn.microsoft.com/en-us/library/14h5k7ff.aspx ):
1536 * - st_gid, st_ino, st_uid: only valid on "unix" file systems (not FAT, NTFS, etc)
1537 * - st_atime, st_ctime: not valid on FAT, valid on NTFS.
1538 * - Other fields should be reasonably compatible (and S_ISDIR should work).
1540 * BY_HANDLE_FILE_INFORMATION ( https://msdn.microsoft.com/en-us/library/windows/desktop/aa363788%28v=vs.85%29.aspx ):
1541 * - File index (combined nFileIndexHigh and nFileIndexLow) _may_ change when the file is opened.
1542 * - But on NTFS: it's guaranteed to be the same value until the file is deleted.
1543 * - On windows server 2012 there's a 128b file id, and the 64b one via
1544 * nFileIndex* is not guaranteed to be unique.
1546 * - MS Docs suggest to that volume number with the file index could be used to
1547 * check if two handles refer to the same file.
1550 typedef struct stat file_info_t
;
1552 typedef BY_HANDLE_FILE_INFORMATION file_info_t
;
1555 static int get_file_info(const char *fname
, file_info_t
*out_info
)
1558 return stat(fname
, out_info
);
1561 HANDLE h
= CreateFile(fname
, GENERIC_READ
, FILE_SHARE_READ
, NULL
, OPEN_EXISTING
,
1562 FILE_ATTRIBUTE_NORMAL
|FILE_FLAG_BACKUP_SEMANTICS
, NULL
);
1564 if (h
!= INVALID_HANDLE_VALUE
) {
1565 rv
= !GetFileInformationByHandle(h
, out_info
);
1572 static int is_dir(file_info_t
*info
)
1575 return S_ISDIR(info
->st_mode
);
1577 return (info
->dwFileAttributes
& FILE_ATTRIBUTE_DIRECTORY
) ==
1578 FILE_ATTRIBUTE_DIRECTORY
;
1582 static int is_same_file(const file_info_t
*fi1
, const file_info_t
*fi2
)
1585 return fi1
->st_dev
== fi2
->st_dev
&&
1586 fi1
->st_ino
== fi2
->st_ino
;
1588 return fi1
->dwVolumeSerialNumber
== fi2
->dwVolumeSerialNumber
&&
1589 fi1
->nFileIndexHigh
== fi2
->nFileIndexHigh
&&
1590 fi1
->nFileIndexLow
== fi2
->nFileIndexLow
;
1595 tcc_normalize_inc_dirs_aux(file_info_t
*stats
, size_t *pnum
, char **path
)
1597 size_t i
, num
= *pnum
;
1598 if (get_file_info(*path
, &stats
[num
]) || !is_dir(&stats
[num
]))
1600 for (i
= 0; i
< num
; i
++)
1601 if (is_same_file(&stats
[i
], &stats
[num
]))
1610 /* Remove non-existent and duplicate directories from include paths. */
1611 ST_FUNC
void tcc_normalize_inc_dirs(TCCState
*s
)
1613 file_info_t
*stats
=
1614 tcc_malloc(((size_t)s
->nb_sysinclude_paths
+ s
->nb_include_paths
) *
1617 for (i
= 0; i
< s
->nb_sysinclude_paths
; i
++)
1618 tcc_normalize_inc_dirs_aux(stats
, &num
, &s
->sysinclude_paths
[i
]);
1619 for (i
= 0; i
< s
->nb_include_paths
; i
++)
1620 tcc_normalize_inc_dirs_aux(stats
, &num
, &s
->include_paths
[i
]);
1624 LIBTCCAPI
int tcc_set_output_type(TCCState
*s
, int output_type
)
1626 s
->output_type
= output_type
;
1629 /* default include paths */
1630 /* -isystem paths have already been handled */
1631 tcc_add_sysinclude_path(s
, CONFIG_TCC_SYSINCLUDEPATHS
);
1634 /* if bound checking, then add corresponding sections */
1635 #ifdef CONFIG_TCC_BCHECK
1636 if (s
->do_bounds_check
) {
1638 tcc_define_symbol(s
, "__BOUNDS_CHECKING_ON", NULL
);
1639 /* create bounds sections */
1640 bounds_section
= new_section(s
, ".bounds",
1641 SHT_PROGBITS
, SHF_ALLOC
);
1642 lbounds_section
= new_section(s
, ".lbounds",
1643 SHT_PROGBITS
, SHF_ALLOC
);
1647 if (s
->char_is_unsigned
) {
1648 tcc_define_symbol(s
, "__CHAR_UNSIGNED__", NULL
);
1651 /* add debug sections */
1654 stab_section
= new_section(s
, ".stab", SHT_PROGBITS
, 0);
1655 stab_section
->sh_entsize
= sizeof(Stab_Sym
);
1656 stabstr_section
= new_section(s
, ".stabstr", SHT_STRTAB
, 0);
1657 put_elf_str(stabstr_section
, "");
1658 stab_section
->link
= stabstr_section
;
1659 /* put first entry */
1660 put_stabs("", 0, 0, 0, 0);
1663 tcc_add_library_path(s
, CONFIG_TCC_LIBPATHS
);
1664 #ifdef TCC_TARGET_PE
1666 tcc_add_systemdir(s
);
1669 /* add libc crt1/crti objects */
1670 if ((output_type
== TCC_OUTPUT_EXE
|| output_type
== TCC_OUTPUT_DLL
) &&
1672 if (output_type
!= TCC_OUTPUT_DLL
)
1673 tcc_add_crt(s
, "crt1.o");
1674 tcc_add_crt(s
, "crti.o");
1677 if (s
->normalize_inc_dirs
)
1678 tcc_normalize_inc_dirs(s
);
1682 LIBTCCAPI
void tcc_set_lib_path(TCCState
*s
, const char *path
)
1684 tcc_free(s
->tcc_lib_path
);
1685 s
->tcc_lib_path
= tcc_strdup(path
);
1688 #define WD_ALL 0x0001 /* warning is activated when using -Wall */
1689 #define FD_INVERT 0x0002 /* invert value before storing */
1691 typedef struct FlagDef
{
1697 static const FlagDef warning_defs
[] = {
1698 { offsetof(TCCState
, warn_unsupported
), 0, "unsupported" },
1699 { offsetof(TCCState
, warn_write_strings
), 0, "write-strings" },
1700 { offsetof(TCCState
, warn_error
), 0, "error" },
1701 { offsetof(TCCState
, warn_implicit_function_declaration
), WD_ALL
,
1702 "implicit-function-declaration" },
1705 ST_FUNC
int set_flag(TCCState
*s
, const FlagDef
*flags
, int nb_flags
,
1706 const char *name
, int value
)
1713 if (r
[0] == 'n' && r
[1] == 'o' && r
[2] == '-') {
1717 for(i
= 0, p
= flags
; i
< nb_flags
; i
++, p
++) {
1718 if (!strcmp(r
, p
->name
))
1723 if (p
->flags
& FD_INVERT
)
1725 *(int *)((uint8_t *)s
+ p
->offset
) = value
;
1729 /* set/reset a warning */
1730 static int tcc_set_warning(TCCState
*s
, const char *warning_name
, int value
)
1735 if (!strcmp(warning_name
, "all")) {
1736 for(i
= 0, p
= warning_defs
; i
< countof(warning_defs
); i
++, p
++) {
1737 if (p
->flags
& WD_ALL
)
1738 *(int *)((uint8_t *)s
+ p
->offset
) = 1;
1742 return set_flag(s
, warning_defs
, countof(warning_defs
),
1743 warning_name
, value
);
1747 static const FlagDef flag_defs
[] = {
1748 { offsetof(TCCState
, char_is_unsigned
), 0, "unsigned-char" },
1749 { offsetof(TCCState
, char_is_unsigned
), FD_INVERT
, "signed-char" },
1750 { offsetof(TCCState
, nocommon
), FD_INVERT
, "common" },
1751 { offsetof(TCCState
, leading_underscore
), 0, "leading-underscore" },
1752 { offsetof(TCCState
, ms_extensions
), 0, "ms-extensions" },
1753 { offsetof(TCCState
, old_struct_init_code
), 0, "old-struct-init-code" },
1754 { offsetof(TCCState
, dollars_in_identifiers
), 0, "dollars-in-identifiers" },
1755 { offsetof(TCCState
, normalize_inc_dirs
), 0, "normalize-inc-dirs" },
1758 /* set/reset a flag */
1759 static int tcc_set_flag(TCCState
*s
, const char *flag_name
, int value
)
1761 return set_flag(s
, flag_defs
, countof(flag_defs
),
1766 static int strstart(const char *val
, const char **str
)
1781 /* Like strstart, but automatically takes into account that ld options can
1783 * - start with double or single dash (e.g. '--soname' or '-soname')
1784 * - arguments can be given as separate or after '=' (e.g. '-Wl,-soname,x.so'
1785 * or '-Wl,-soname=x.so')
1787 * you provide `val` always in 'option[=]' form (no leading -)
1789 static int link_option(const char *str
, const char *val
, const char **ptr
)
1793 /* there should be 1 or 2 dashes */
1799 /* then str & val should match (potentialy up to '=') */
1803 while (*q
!= '\0' && *q
!= '=') {
1810 /* '=' near eos means ',' or '=' is ok */
1812 if (*p
!= ',' && *p
!= '=')
1823 static const char *skip_linker_arg(const char **str
)
1825 const char *s1
= *str
;
1826 const char *s2
= strchr(s1
, ',');
1827 *str
= s2
? s2
++ : (s2
= s1
+ strlen(s1
));
1831 static char *copy_linker_arg(const char *p
)
1834 skip_linker_arg(&q
);
1835 return pstrncpy(tcc_malloc(q
- p
+ 1), p
, q
- p
);
1838 /* set linker options */
1839 static int tcc_set_linker(TCCState
*s
, const char *option
)
1841 while (option
&& *option
) {
1843 const char *p
= option
;
1847 if (link_option(option
, "Bsymbolic", &p
)) {
1849 } else if (link_option(option
, "nostdlib", &p
)) {
1851 } else if (link_option(option
, "fini=", &p
)) {
1852 s
->fini_symbol
= copy_linker_arg(p
);
1854 } else if (link_option(option
, "image-base=", &p
)
1855 || link_option(option
, "Ttext=", &p
)) {
1856 s
->text_addr
= strtoull(p
, &end
, 16);
1857 s
->has_text_addr
= 1;
1858 } else if (link_option(option
, "init=", &p
)) {
1859 s
->init_symbol
= copy_linker_arg(p
);
1861 } else if (link_option(option
, "oformat=", &p
)) {
1862 #if defined(TCC_TARGET_PE)
1863 if (strstart("pe-", &p
)) {
1864 #elif defined(TCC_TARGET_ARM64) || defined(TCC_TARGET_X86_64)
1865 if (strstart("elf64-", &p
)) {
1867 if (strstart("elf32-", &p
)) {
1869 s
->output_format
= TCC_OUTPUT_FORMAT_ELF
;
1870 } else if (!strcmp(p
, "binary")) {
1871 s
->output_format
= TCC_OUTPUT_FORMAT_BINARY
;
1872 #ifdef TCC_TARGET_COFF
1873 } else if (!strcmp(p
, "coff")) {
1874 s
->output_format
= TCC_OUTPUT_FORMAT_COFF
;
1879 } else if (link_option(option
, "as-needed", &p
)) {
1881 } else if (link_option(option
, "O", &p
)) {
1883 } else if (link_option(option
, "rpath=", &p
)) {
1884 s
->rpath
= copy_linker_arg(p
);
1885 } else if (link_option(option
, "section-alignment=", &p
)) {
1886 s
->section_align
= strtoul(p
, &end
, 16);
1887 } else if (link_option(option
, "soname=", &p
)) {
1888 s
->soname
= copy_linker_arg(p
);
1889 #ifdef TCC_TARGET_PE
1890 } else if (link_option(option
, "file-alignment=", &p
)) {
1891 s
->pe_file_align
= strtoul(p
, &end
, 16);
1892 } else if (link_option(option
, "stack=", &p
)) {
1893 s
->pe_stack_size
= strtoul(p
, &end
, 10);
1894 } else if (link_option(option
, "subsystem=", &p
)) {
1895 #if defined(TCC_TARGET_I386) || defined(TCC_TARGET_X86_64)
1896 if (!strcmp(p
, "native")) {
1897 s
->pe_subsystem
= 1;
1898 } else if (!strcmp(p
, "console")) {
1899 s
->pe_subsystem
= 3;
1900 } else if (!strcmp(p
, "gui")) {
1901 s
->pe_subsystem
= 2;
1902 } else if (!strcmp(p
, "posix")) {
1903 s
->pe_subsystem
= 7;
1904 } else if (!strcmp(p
, "efiapp")) {
1905 s
->pe_subsystem
= 10;
1906 } else if (!strcmp(p
, "efiboot")) {
1907 s
->pe_subsystem
= 11;
1908 } else if (!strcmp(p
, "efiruntime")) {
1909 s
->pe_subsystem
= 12;
1910 } else if (!strcmp(p
, "efirom")) {
1911 s
->pe_subsystem
= 13;
1912 #elif defined(TCC_TARGET_ARM)
1913 if (!strcmp(p
, "wince")) {
1914 s
->pe_subsystem
= 9;
1922 if (ignoring
&& s
->warn_unsupported
) err
: {
1924 pstrcpy(buf
, sizeof buf
, e
= copy_linker_arg(option
)), tcc_free(e
);
1926 tcc_warning("unsupported linker option '%s'", buf
);
1928 tcc_error("unsupported linker option '%s'", buf
);
1930 option
= skip_linker_arg(&p
);
1935 typedef struct TCCOption
{
1955 TCC_OPTION_dumpversion
,
1957 TCC_OPTION_float_abi
,
1965 TCC_OPTION_traditional
,
1972 TCC_OPTION_iwithprefix
,
1973 TCC_OPTION_nostdinc
,
1974 TCC_OPTION_nostdlib
,
1975 TCC_OPTION_print_search_dirs
,
1976 TCC_OPTION_rdynamic
,
1977 TCC_OPTION_pedantic
,
1989 #define TCC_OPTION_HAS_ARG 0x0001
1990 #define TCC_OPTION_NOSEP 0x0002 /* cannot have space before option and arg */
1992 static const TCCOption tcc_options
[] = {
1993 { "h", TCC_OPTION_HELP
, 0 },
1994 { "-help", TCC_OPTION_HELP
, 0 },
1995 { "?", TCC_OPTION_HELP
, 0 },
1996 { "I", TCC_OPTION_I
, TCC_OPTION_HAS_ARG
},
1997 { "D", TCC_OPTION_D
, TCC_OPTION_HAS_ARG
},
1998 { "U", TCC_OPTION_U
, TCC_OPTION_HAS_ARG
},
1999 { "P", TCC_OPTION_P
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2000 { "L", TCC_OPTION_L
, TCC_OPTION_HAS_ARG
},
2001 { "B", TCC_OPTION_B
, TCC_OPTION_HAS_ARG
},
2002 { "l", TCC_OPTION_l
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2003 { "bench", TCC_OPTION_bench
, 0 },
2004 #ifdef CONFIG_TCC_BACKTRACE
2005 { "bt", TCC_OPTION_bt
, TCC_OPTION_HAS_ARG
},
2007 #ifdef CONFIG_TCC_BCHECK
2008 { "b", TCC_OPTION_b
, 0 },
2010 { "g", TCC_OPTION_g
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2011 { "c", TCC_OPTION_c
, 0 },
2012 { "dumpversion", TCC_OPTION_dumpversion
, 0},
2013 { "d", TCC_OPTION_d
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2014 #ifdef TCC_TARGET_ARM
2015 { "mfloat-abi", TCC_OPTION_float_abi
, TCC_OPTION_HAS_ARG
},
2017 { "static", TCC_OPTION_static
, 0 },
2018 { "std", TCC_OPTION_std
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2019 { "shared", TCC_OPTION_shared
, 0 },
2020 { "soname", TCC_OPTION_soname
, TCC_OPTION_HAS_ARG
},
2021 { "o", TCC_OPTION_o
, TCC_OPTION_HAS_ARG
},
2022 { "pedantic", TCC_OPTION_pedantic
, 0},
2023 { "pthread", TCC_OPTION_pthread
, 0},
2024 { "run", TCC_OPTION_run
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2025 { "rdynamic", TCC_OPTION_rdynamic
, 0 },
2026 { "r", TCC_OPTION_r
, 0 },
2027 { "s", TCC_OPTION_s
, 0 },
2028 { "traditional", TCC_OPTION_traditional
, 0 },
2029 { "Wl,", TCC_OPTION_Wl
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2030 { "W", TCC_OPTION_W
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2031 { "O", TCC_OPTION_O
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2032 { "m", TCC_OPTION_m
, TCC_OPTION_HAS_ARG
},
2033 { "f", TCC_OPTION_f
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2034 { "isystem", TCC_OPTION_isystem
, TCC_OPTION_HAS_ARG
},
2035 { "iwithprefix", TCC_OPTION_iwithprefix
, TCC_OPTION_HAS_ARG
},
2036 { "nostdinc", TCC_OPTION_nostdinc
, 0 },
2037 { "nostdlib", TCC_OPTION_nostdlib
, 0 },
2038 { "print-search-dirs", TCC_OPTION_print_search_dirs
, 0 },
2039 { "v", TCC_OPTION_v
, TCC_OPTION_HAS_ARG
| TCC_OPTION_NOSEP
},
2040 { "w", TCC_OPTION_w
, 0 },
2041 { "pipe", TCC_OPTION_pipe
, 0},
2042 { "E", TCC_OPTION_E
, 0},
2043 { "MD", TCC_OPTION_MD
, 0},
2044 { "MF", TCC_OPTION_MF
, TCC_OPTION_HAS_ARG
},
2045 { "x", TCC_OPTION_x
, TCC_OPTION_HAS_ARG
},
2049 static void parse_option_D(TCCState
*s1
, const char *optarg
)
2051 char *sym
= tcc_strdup(optarg
);
2052 char *value
= strchr(sym
, '=');
2055 tcc_define_symbol(s1
, sym
, value
);
2059 static void args_parser_add_file(TCCState
*s
, const char* filename
, int filetype
)
2061 struct filespec
*f
= tcc_malloc(sizeof *f
+ strlen(filename
));
2063 strcpy(f
->name
, filename
);
2064 dynarray_add((void ***)&s
->files
, &s
->nb_files
, f
);
2067 /* read list file */
2068 static void args_parser_listfile(TCCState
*s
, const char *filename
)
2074 fd
= open(filename
, O_RDONLY
| O_BINARY
);
2076 tcc_error("file '%s' not found", filename
);
2078 len
= lseek(fd
, 0, SEEK_END
);
2079 p
= tcc_malloc(len
+ 1), p
[len
] = 0;
2080 lseek(fd
, 0, SEEK_SET
), read(fd
, p
, len
), close(fd
);
2081 tcc_set_options(s
, p
);
2085 PUB_FUNC
int tcc_parse_args(TCCState
*s
, int argc
, char **argv
)
2087 const TCCOption
*popt
;
2088 const char *optarg
, *r
;
2096 while (optind
< argc
) {
2100 if (r
[0] == '@' && r
[1] != '\0') {
2101 args_parser_listfile(s
, r
+ 1);
2105 if (r
[0] != '-' || r
[1] == '\0') {
2106 args_parser_add_file(s
, r
, s
->filetype
);
2109 /* argv[0] will be this file */
2115 /* find option in table */
2116 for(popt
= tcc_options
; ; ++popt
) {
2117 const char *p1
= popt
->name
;
2118 const char *r1
= r
+ 1;
2120 tcc_error("invalid option -- '%s'", r
);
2121 if (!strstart(p1
, &r1
))
2124 if (popt
->flags
& TCC_OPTION_HAS_ARG
) {
2125 if (*r1
== '\0' && !(popt
->flags
& TCC_OPTION_NOSEP
)) {
2127 tcc_error("argument to '%s' is missing", r
);
2128 optarg
= argv
[optind
++];
2130 } else if (*r1
!= '\0')
2135 switch(popt
->index
) {
2136 case TCC_OPTION_HELP
:
2139 tcc_add_include_path(s
, optarg
);
2142 parse_option_D(s
, optarg
);
2145 tcc_undefine_symbol(s
, optarg
);
2148 tcc_add_library_path(s
, optarg
);
2151 /* set tcc utilities path (mainly for tcc development) */
2152 tcc_set_lib_path(s
, optarg
);
2155 args_parser_add_file(s
, optarg
, AFF_TYPE_LIB
);
2158 case TCC_OPTION_pthread
:
2159 parse_option_D(s
, "_REENTRANT");
2160 s
->args_pthread
= 1;
2162 case TCC_OPTION_bench
:
2165 #ifdef CONFIG_TCC_BACKTRACE
2167 tcc_set_num_callers(atoi(optarg
));
2170 #ifdef CONFIG_TCC_BCHECK
2172 s
->do_bounds_check
= 1;
2183 tcc_warning("-%s: overriding compiler action already specified", popt
->name
);
2189 else if (*optarg
== 'M')
2192 goto unsupported_option
;
2194 #ifdef TCC_TARGET_ARM
2195 case TCC_OPTION_float_abi
:
2196 /* tcc doesn't support soft float yet */
2197 if (!strcmp(optarg
, "softfp")) {
2198 s
->float_abi
= ARM_SOFTFP_FLOAT
;
2199 tcc_undefine_symbol(s
, "__ARM_PCS_VFP");
2200 } else if (!strcmp(optarg
, "hard"))
2201 s
->float_abi
= ARM_HARD_FLOAT
;
2203 tcc_error("unsupported float abi '%s'", optarg
);
2206 case TCC_OPTION_static
:
2209 case TCC_OPTION_std
:
2210 /* silently ignore, a current purpose:
2211 allow to use a tcc as a reference compiler for "make test" */
2213 case TCC_OPTION_shared
:
2215 goto set_output_type
;
2216 case TCC_OPTION_soname
:
2217 s
->soname
= tcc_strdup(optarg
);
2220 s
->option_m
= tcc_strdup(optarg
);
2224 tcc_warning("multiple -o option");
2225 tcc_free(s
->outfile
);
2227 s
->outfile
= tcc_strdup(optarg
);
2230 /* generate a .o merging several output files */
2233 goto set_output_type
;
2234 case TCC_OPTION_isystem
:
2235 tcc_add_sysinclude_path(s
, optarg
);
2237 case TCC_OPTION_iwithprefix
:
2238 snprintf(buf
, sizeof buf
, "{B}/%s", optarg
);
2239 tcc_add_sysinclude_path(s
, buf
);
2241 case TCC_OPTION_nostdinc
:
2244 case TCC_OPTION_nostdlib
:
2247 case TCC_OPTION_print_search_dirs
:
2248 s
->print_search_dirs
= 1;
2250 case TCC_OPTION_run
:
2251 #ifndef TCC_IS_NATIVE
2252 tcc_error("-run is not available in a cross compiler");
2254 tcc_set_options(s
, optarg
);
2256 x
= TCC_OUTPUT_MEMORY
;
2257 goto set_output_type
;
2259 do ++s
->verbose
; while (*optarg
++ == 'v');
2262 if (tcc_set_flag(s
, optarg
, 1) < 0)
2263 goto unsupported_option
;
2266 if (tcc_set_warning(s
, optarg
, 1) < 0)
2267 goto unsupported_option
;
2272 case TCC_OPTION_rdynamic
:
2276 if (s
->linker_arg
.size
)
2277 --s
->linker_arg
.size
, cstr_ccat(&s
->linker_arg
, ',');
2278 cstr_cat(&s
->linker_arg
, optarg
, 0);
2281 x
= TCC_OUTPUT_PREPROCESS
;
2282 goto set_output_type
;
2284 s
->Pflag
= atoi(optarg
) + 1;
2290 s
->deps_outfile
= tcc_strdup(optarg
);
2292 case TCC_OPTION_dumpversion
:
2293 printf ("%s\n", TCC_VERSION
);
2298 case TCC_OPTION_traditional
:
2302 s
->filetype
= AFF_TYPE_C
;
2303 else if (*optarg
== 'a')
2304 s
->filetype
= AFF_TYPE_ASMPP
;
2305 else if (*optarg
== 'n')
2306 s
->filetype
= AFF_TYPE_NONE
;
2308 tcc_warning("unsupported language '%s'", optarg
);
2313 tcc_define_symbol(s
, "__OPTIMIZE__", NULL
);
2315 case TCC_OPTION_pedantic
:
2316 case TCC_OPTION_pipe
:
2321 if (s
->warn_unsupported
)
2322 tcc_warning("unsupported option '%s'", r
);
2327 if (1 == s
->args_ref
) {
2329 if (s
->output_type
!= TCC_OUTPUT_OBJ
) {
2330 tcc_set_linker(s
, (const char *)s
->linker_arg
.data
);
2331 if (s
->args_pthread
) {
2332 args_parser_add_file(s
, optarg
, 'l');
2336 cstr_free(&s
->linker_arg
);
2337 s
->args_pthread
= 0;
2344 LIBTCCAPI
int tcc_set_options(TCCState
*s
, const char *r
)
2351 argc
= 0, argv
= NULL
;
2353 while (c
= (unsigned char)*r
, c
&& c
<= ' ')
2359 while (c
= (unsigned char)*r
, c
) {
2361 if (c
== '\\' && (*r
== '"' || *r
== '\\')) {
2363 } else if (c
== '"') {
2366 } else if (q
== 0 && c
<= ' ') {
2372 //printf("<%s>\n", str.data), fflush(stdout);
2373 dynarray_add((void ***)&argv
, &argc
, tcc_strdup(str
.data
));
2376 ret
= tcc_parse_args(s
, argc
, argv
);
2377 dynarray_reset(&argv
, &argc
);
2381 PUB_FUNC
void tcc_print_stats(TCCState
*s
, int64_t total_time
)
2384 tt
= (double)total_time
/ 1000000.0;
2387 if (total_bytes
< 1)
2389 fprintf(stderr
, "%d idents, %d lines, %d bytes, %0.3f s, %d lines/s, %0.1f MB/s\n",
2390 tok_ident
- TOK_IDENT
, total_lines
, total_bytes
,
2391 tt
, (int)(total_lines
/ tt
),
2392 total_bytes
/ tt
/ 1000000.0);
2395 PUB_FUNC
void tcc_set_environment(TCCState
*s
)
2399 path
= getenv("C_INCLUDE_PATH");
2401 tcc_add_include_path(s
, path
);
2403 path
= getenv("CPATH");
2405 tcc_add_include_path(s
, path
);
2407 path
= getenv("LIBRARY_PATH");
2409 tcc_add_library_path(s
, path
);